Analysis of a Finite Element Method--PDE/PROTRANSpringer-Verlag, 1985 - 154 pagine |
Dall'interno del libro
Risultati 1-3 di 35
Pagina 43
... ERROR INTEGRAL = NTRIANGLES DEGREE = 2 DABS ( U- ( X * X + Y * Y ) ** 0.25 ) = 80 PRECISION = DOUBLE FRONTAL END The average slope of the curve of log ( error ) versus log ( NT ) is close to the optimal -1.5 for both graded refinements ...
... ERROR INTEGRAL = NTRIANGLES DEGREE = 2 DABS ( U- ( X * X + Y * Y ) ** 0.25 ) = 80 PRECISION = DOUBLE FRONTAL END The average slope of the curve of log ( error ) versus log ( NT ) is close to the optimal -1.5 for both graded refinements ...
Pagina 51
... error on the previous iteration . If the system of equations is linear , then all second derivatives are zero , and the error is zero after a single iteration . Thus linear systems are not treated differently from nonlinear systems ...
... error on the previous iteration . If the system of equations is linear , then all second derivatives are zero , and the error is zero after a single iteration . Thus linear systems are not treated differently from nonlinear systems ...
Pagina 128
... error messages , is shown in Table A.2.1 . Once these blunders are corrected , the program is rerun with results as ... error messages to signal numerical difficulties or input errors impossible to detect at preprocessor time . One such ...
... error messages , is shown in Table A.2.1 . Once these blunders are corrected , the program is rerun with results as ... error messages to signal numerical difficulties or input errors impossible to detect at preprocessor time . One such ...
Sommario
Partial Differential Equation Applications | 1 |
Elliptic ProblemsForming the Algebraic Equations | 22 |
Elliptic ProblemsSolving the Algebraic Equations | 50 |
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A.UX algorithm approximating assumed backward difference method band solver basis functions boundary conditions BOUNDARY FORCE calculated components conjugate gradient method convergence Crank-Nicolson Crank-Nicolson method curved D3EST Default defined in GLOBAL derivatives diagonal dimensional discretization discretization error DISPLACEMENTS DOUBLE PRECISION DOUBLE PRECISION Expression dxdy eigenfunction eigenvalue problem elastic error Expression involving constants ƏR₁ Figure filename finite difference method finite element formula FORTRAN frontal method frontal solver Galerkin grid hyperbolic problems iarcI initial triangulation integration inverse power method Jacobian matrix keyword Lanczos Iteration Lanczos method linear system Newton iteration Newton's method nonlinear nonzero normalized triangle NOUPDATE output PDE/PROTRAN PDE2D piecewise polynomial plot Pn+1 positive definite PRECISION Expression involving PRECISION MATRIX quadratic quartic elements REAL or DOUBLE satisfies Section shown solution solve specified step Structure symmetric updated UPRINT values variables defined vector velocity VERTICES VSOL XGRID xk+1 zero
Riferimenti a questo libro
Nonlinear Functional Analysis and Its Applications: Part 2 B: Nonlinear ... E. Zeidler Anteprima non disponibile - 1989 |
The Numerical Solution of Ordinary and Partial Differential Equations Granville Sewell Anteprima limitata - 2005 |